I'm going to change the oil on (my first time) my friends turbo wagon. She informed me that there is an oil trap that needs to be cleaned each change. She found this out the hard way, as the result of $800 worth of damage for not doing it. The local dealer said it's on the side of the engine and needs to be serviced every 10k miles. I didn't see anything about this thing in the car's manuals. any advice on this? Also- any recommendations on oil weight and brand, filters, and frequency of changes?
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